All Flashcards
What is the definition of electric power?
The rate at which electrical energy is transferred, converted, or dissipated within a circuit.
Define electric potential difference.
The difference in electric potential between two points, measured in volts (V).
What is current?
The rate of flow of electric charge, measured in amperes (A).
Define resistance.
A measure of the opposition to the flow of electric current in a circuit, measured in ohms (Ω).
What is the unit of power?
Watt (W)
What happens when resistance increases in a circuit with constant voltage?
The current decreases.
What happens when current increases through a resistor?
The power dissipated by the resistor increases (as ).
What happens when a resistor is added in parallel to an existing resistor?
The total resistance of the circuit decreases.
What happens when a higher power bulb is used in a circuit?
The bulb will be brighter.
What happens to the total current when a resistor is added in parallel to a circuit?
The total current increases.
What is the definition of Electric Power?
The rate at which electrical energy is transferred, converted, or dissipated within a circuit, measured in Watts.
Define Current (I).
The flow of electric charge, measured in Amperes (A).
Define Electric Potential Difference (ΔV).
The difference in electric potential between two points, measured in Volts (V). Also known as voltage.
Define Resistance (R).
A measure of the opposition to current flow in an electrical circuit, measured in Ohms (Ω).
Define Watt (W).
The SI unit of power, representing the rate of energy transfer or conversion (1 W = 1 J/s).